Lot 35. A 'Tixi' black lacquer bowl, Yuan dynasty (1279-1366); 13.2 cm, 5 1/4  in. Estimate 20,000 — 30,000 GBP. Courtesy Sotheby's 2018. 

the rounded sides rising from a raised foot to an everted rim, the exterior deeply carved with a ruyi cloud scroll exposing the multiple layers of black and red to a yellow ground, the interior lacquered black.

Sotheby's. Important Chinese Art, London, 16 May 2018, 10:30 AM